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High Silicon Cast Iron Anodes For Marine Structures

High Silicon Cast Iron Anodes For Marine Structures
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Description:

High silicon cast iron anodes are also used in various marine structures such as underwater platforms, ships, and oil/gas rigs. Because these structures are constantly exposed to salt water and other corrosive elements, the anodes help protect them from damage caused by corrosion.

Advantage:

The high silicon content of the anodes means that they are more resistant to corrosion,

they can last for an extended period without the need for frequent maintenance or replacement.

Application:

1. Above ground storage tank bottoms
2. Reinforced concrete structures
3. Under ground storge tank
4. Fine sand environment
 

Chemical Composition of Silicon Iron Anode:

Chemical Composition:

Silicon (Si)

14.20-15.75%

Manganese (Mn)

1.5% max.

Carbon (C)

0.70-1.10%

Chromium (Cr)

3.25-5.00%

Molybdenum (Mo)

0.20% max.

Copper (Cu)

0.50% max.

Iron (Fe)

balance

Typical analysis by ASTM A518-86 Grade 3 and BS. 1591

Specification:

1. Consumption of Anode Material
2. In tests and real life installation, up to 99.8% of the anode material was consumed. Consumption figures of 88 % to 93.5% are common. The consumption rates are:

Environment

Current Density (A/m2)

Consumption Rate (Kg/A.Year)

Coke Backfill

10-30

0.1

Fresh Water

10-30

0.15

Seawater

10-50

0.5

Soil

10-30

0.3

Tensile strength

103 N/mm2

Compressive strength

689 N/mm2

Brinell hardness

520 HB

Density

7.0 g/cm3

Melting point

1300°C

Coefficient of linear expansion

1.86*10-5/0C (0-1000C)

Parameters:

Standard Sizes Of Solid Anodes:

TYPE

O.D.

Length

Weight(kg)

Surface Area(m2)

CS-12

1.5"

60"

12.7

0.2

CS-13

2.0"

60"

22.7

0.25

CS-14

2.5"

60"

33.5

0.32

CS-15

3.0"

60"

49.0

0.38

Dimensions and weights shown are nominal of +/-5 percent.
Non-standard sizes and weights of anode are available upon request.

Standard Sizes of Tubular Anodes

Type

Dimension (mm/inch)

Surface area
(m2/ft2)

Weight
(kg/lb)

O.D

I.D

length

HL-TS-1

56.0 (2.20)

37.0 (1.46)

2134 (84)

0.375 (4.04)

21.0 (46.3)

HL-TS-2

66.0 (2.60)

42.5 (1.67)

2134 (84)

0.442 (4.76)

28.8 (63.5)

HL-TS-3

68.6 (2.70)

42.5 (1.67)

2134 (84)

0.460 (4.95)

32.0 (70.5)

HL-TS-4

96.0 (3.80)

76.0 (3.00)

2134 (84)

0.644 (6.93)

41.0 (90.4)

HL-TS-5

122.0 (4.80)

88.0 (3.46)

2134 (84)

0.818 (8.80)

80.6 (177.7)

HL-TS-6

122.0 (4.80)

100.0 (4.0)

2134 (84)

0.818 (8.80)

55.3 (121.8)

HL-TS-7

56.0 (2.20)

37.0 (1.46)

1524 (60)

0.268 (2.89)

14.3 (31.6)

HL-TS-8

66.0 (2.60)

42.5 (1.67)

1524 (60)

0.316 (3.40)

20.6 (45.5)

HL-TS-9

96.0 (3.80)

76.3 (3.00)

1524 (60)

0.460 (4.95)

30.0 (66.1)

HL-TS-10

122.0 (4.80)

88.0 (3.46)

1524 (60)

0.584 (6.29)

57.7 (127.1)

HL-TS-11

122.0 (4.80)

100.0 (4.0)

1524 (60)

0.584 (6.29)

39.2 (86.4)
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